PATELLA. 3 



C. ACULEATUS. Ovate, thick^ blackish brown ; 

 margin with short, subulate, various -coloured 

 spines ; terminal plates elegantly waved with 

 sub-concentric undulated lines ; the lateral areas 

 of the nest scarcely marked, and prettily waved 

 by undulated lines, with irregularly disposed 

 elongated granulations, gradually disappearing 

 towards the summit. 24 . . . 1^. W. 1. 6. 



PATELLA. 



Univalve; not spiral; shield-shaped or obtusely 

 conical, concave within, simple, entire ; sum- 

 mit anteriorly inclined; imperforate. 



P. GRANATiNA. Flattish, augulatcd, with 

 numerous muricated ribs and striae ; muscular 

 impression dark-reddish brown ; numerous zig- 

 zag undulated transverse purplish-brown scales 

 cover the shell, and are manifest in the interior 

 through a pearly coating. 2i...]|. W. 37. 



27. 



P. BARBARA. Toothcd, with very numerous 

 muricated vaulted ribs ; colour sallow, and some- 

 times ringed without ; the inside white, if ... 1^. 

 W. 37. 22. 



P. PLiCATA. Angulated, with blunt undulated 

 transversely - wrinkled ribs, brownish ; summit 

 obtuse. 2...1i. (Front. 1.) 



P. SACCHARIN A. Augulatcd, with seven blunt 



